...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>IEEE sensors journal >Electrochemical Determination of Papaverine on Mg-Al Layered Double Hydroxide/ Graphene Oxide and CNT Modified Carbon Paste Electrode
【24h】

Electrochemical Determination of Papaverine on Mg-Al Layered Double Hydroxide/ Graphene Oxide and CNT Modified Carbon Paste Electrode

机译：Mg-Al层状双氢氧化物/氧化石墨烯和CNT修饰的碳糊电极上的电化学检测罂粟碱

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A sensitive electrochemical method for the determination of papaverine (PAP) by using Mg-Al layered double hydroxide graphene oxide (LDH-GO) and multiwall carbon nanotubes (MWCNT) immobilized on carbon paste electrode (CPE) has been introduced. Electrochemical behavior of PAP as an antispasmodic was investigated on modified CPE by cyclic voltammetry, differential pulse voltammetry, electrochemical impedance spectroscopy, and double step chronoamperometry techniques. Due to the remarkable electrochemical behavior of MWCNT and the high chemical activity of LDH-GO, CNT/LDH-GO/CPE anodic peak current of PAP enhances compared with CNT/CPE and LDH-GO/CPE. The surface morphology of the electrode was studied by the field emission scanning electron microscopy technique. The effect of experimental parameters, such as pH and scan rate on voltammetric response of PAP, was investigated. Maximum current was observed in phosphate buffer . The electrode reaction followed a diffusion-controlled pathway. The wide dynamic range of concentration (0.10–100 mol ) with a detection limit of mol was obtained for PAP under optimized conditions. This electrode displayed proper reproducibility, stability, and anti-interference. Low cost, easy preparation, high sensitivity, and good selectivity have made the modified electrode suitable for the determination of PAP in urine and plasma matrixes.
机译：介绍了一种灵敏的电化学方法，该方法通过使用Mg-Al层状双氢氧化物氧化石墨烯（LDH-GO）和固定在碳糊电极（CPE）上的多壁碳纳米管（MWCNT）来测定罂粟碱（PAP）。通过循环伏安法，差分脉冲伏安法，电化学阻抗谱和双步计时安培技术研究了改性CPE上PAP作为解痉剂的电化学行为。由于MWCNT具有出色的电化学行为和LDH-GO的高化学活性，PAP的CNT / LDH-GO / CPE阳极峰值电流比CNT / CPE和LDH-GO / CPE增强。通过场发射扫描电子显微镜技术研究了电极的表面形态。研究了诸如pH和扫描速率等实验参数对PAP伏安响应的影响。在磷酸盐缓冲液中观察到最大电流。电极反应遵循扩散控制的途径。在最佳条件下，PAP获得了宽动态范围（0.10–100 mol），检测极限为mol。该电极表现出适当的重现性，稳定性和抗干扰性。低成本，易于制备，高灵敏度和良好的选择性使这种修饰电极适用于尿液和血浆基质中PAP的测定。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号